I cant take this anymore!

Ive been in horrible pain, off and on (more on than off), for the past two weeks. At first i was terrified that i was miscarrying, but i went to the doc and got a positive and strong heartbeat. Everything with the baby is fine. But this pain is not. I CANNOT do this any longer. If i go too long without eating my hunger pangs trigger the pain and if i eat (usually at all) it also triggers the pain. The only thing that keeps it from hurting is eating literally bits and bits at a time and i just can't live like this. Im so hungry all the time now and like i said i went to the doc and he couldn't tell me why im in so much pain. Does anyone have any idea whats going on? Anyone experience this? If so what is it and how do i stop it?